Sentence Examples

  • The system is economical in fuel, but needs skilled attendance to keep the appliances and fittings in order.
  • An economical method of evaporation must be found.
  • It would be economical, therefore, to make the girder very deep. This, however, involves a much heavier web, and therefore for any type of girder there must be a ratio of depth to span which is most economical.
  • Turrettini did much to increase the economical prosperity of the city.
  • In the choice of a boiler of this description it should be remembered that rapid heating, economical combustion of fuel, and facilities for cleaning, are requisites, the absence of any of which considerably lowers the efficiency of the apparatus.